Claudia Roth ended her work as an MEP when she became part of the Alliance 90/The Greens parliamentary group in the Bundestag after the 1998 German federal election.

In addition, she is a member of the parliament's Council of Elders, which – among other duties – determines daily legislative agenda items and assigning committee chairpersons based on party representation.

"[4] In 1995, she expressed doubts about Prime Minister Tansu Çiller's ability to bring about human rights reforms as a condition for a European Union–Turkey Customs Union.

[5] In June 2013, Roth was at the surroundings of the Taksim Square when the police intervened to evacuate Gezi Park and was among those affected by the tear gas fired by security officers.

"[6] In May 2017, Roth canceled a visit of a parliamentary delegation to Turkey where participants had planned to talk to opposition lawmakers, governors and rights groups about that year's constitutional referendum, saying Ankara had refused to give them a security detail.

[7] On Friday 17 March 2006, Roth reported herself to the German police for displaying a crossed-out swastika on multiple demonstrations against Neo-Nazis, and subsequently got the Bundestag to suspend her immunity from prosecution.

She intended to show the absurdity of charging anti-fascists with using fascist symbols: "We don't need prosecution of non-violent young people engaging against right-wing extremism.

"[This quote needs a citation] In 2008, Roth publicly urged incoming U.S. president Barack Obama to "be pushing for the banning of the death penalty, not for upholding it.

"[8] Speaking in her capacity as leader of the Green Party and underlining the profound divergence in opinion concerning capital punishment in the United States and Western Europe, Roth called the execution of Troy Davis in 2011 "a cynical and inhumane spectacle that occasions mourning and horror.

[10] In 2015, Roth responded to critics of her appearance, stating that for her to have the wart on her nose removed would be "surrender to the patriarchal standards of beauty pushed by the oppressive right-wing".

Her statement came a day after some 10,000 people, some of them carrying banners that said "Against repression and war" and "The American way of life is too expensive for our world," turned out in Berlin in a peaceful protest against the bombings.

The court ruled that while the government did not have to disclose information about planned defense exports, it did have an obligation to provide the Bundestag with details, on request, once specific arms deals had been approved.

[16] Alongside Robert Badinter and Karel Schwarzenberg, she became one of the first signers of the 2015 Paris Declaration which calls for European governments to develop a coordinated approach in addressing China's policies in Tibet.

Along with fellow lawmakers Günter Gloser, Monika Grütters, Luc Jochimsen and Peter Gauweiler, she travelled to Iran in 2010 to meet with Ali Larijani, Manouchehr Mottaki and others; the trip was heavily criticized by international human rights organizations.